Drillinginfo/Enverus data

The Drillinginfo data is stored in files titled HPDIHeader.csv and HPDIProduction.csv.

This data was downloaded in April 2020 using Enverus's "DI Desktop" application using the search criteria in the enclosed screenshots.

Because of the large amount of data, the download was broken into four pieces based on year of first production: 1990-1994, 1995-1999, 2000-2007, and 2008+. The four sets of resulting HPDIHeader.csv and HPDIProduction.csv files were then concatenated ("stacked") to produce a combined csv files of the same names.

An additional dataset on major gas producing states prior to 1990 was included for comparison purposes, but is not part of the main estimation. That data is stored in the /OLDGAS-2020-04-14--Top 4 Gas States Pre 1990/ subfolder.